emissions

Anniversaries often provide an opportunity to reflect on important past events, review what has happened since, and reflect upon the future. April 2 of this year marks the 10th anniversary of the Supreme Court ruling in Massachusetts vs EPA in which the EPA was forced to regulate carbon emissions...

While much of the nation's capital is preoccupied with the unpredictable Trump administration and its possible ties to Russia, the fate of the Environmental Protection Agency generates less news coverage. That's not to say there hasn't been news. Administrator Scott Pruitt is proceeding swiftly...

It's now clear that the zero-emission vehicles of the future will be powered by electric motors. The electricity to power those motors, however, will come from one of two competing technologies: high-capacity batteries or hydrogen fuel cells. The debate over which technology is superior, which has...

Barbie never said "Math is hard!" The talking doll did, notoriously, say "Math class is tough!" in 1989, sparking a media firestorm over gender roles in childrens' toys and then a voluntary recall by Mattel for offended parents. Reworded, however, the point remains accurate: many people don't...

On Saturday, tens of thousands of people joined a Science March in Washington, D.C., to support use of data-based science to set government policy on climate change. The day before, the U.S. Environmental Protection Agency removed detailed climate data and scientific information because it appeared...

Advocates have long suggested that electric vehicles will begin to take over daily driving duties, slowly but surely, from the internal-combustion engine. Now, even oil companies are starting to acknowledge that there may be reality in that dream of the future. France's Total SA, one of the world's...

The current EPA administrator, Scott Pruitt, does not accept the scientific consensus on human contribution to climate change, though he has given some contradictory statements on that matter. His views correspond closely to those of his boss, President Donald Trump, who notoriously compared the...

The Industrial Revolution that started around 1750 in England was powered largely by coal. With Watt's invention of the steam engine and the emergence of railways in the mid-nineteenth century, the carbon-dense fuel was central to the change from an agricultural economy to an industrial one. Last...

As the Trump Administration nears its 100th day, it seems fair to say that it is still emitting mixed messages on multiple issues, from foreign policy to climate change. On that latter, it's important to reiterate that the president and many of his appointed agency and department heads deny the...

The challenges of building fueling infrastructure for passenger cars powered by hydrogen fuel cells are well known by now. Toyota, Honda, and Hyundai now lease low volumes of fuel-cell vehicles in selected areas of California where a few dozen hydrogen fueling stations are now up and running. The...

Despite efforts by Chevrolet to step into the void left by Volkswagen, sales of diesel passenger vehicles in the U.S. may have been permanently crippled by the VW diesel emission scandal. In Europe, however, diesel has been entrenched for decades as roughly 50 percent of the market. Even before the...

Seattle-based startup Zunum Aero has received funding from Boeing HorizonX and JetBlue Technology Ventures toward making its dream of electrified air travel a reality. Sometimes billed as the Tesla of the airplane industry, Zunum is developing a relatively small regional aircraft with about 700...

Despite some alarmist reporting, President Donald Trump hasn't abolished the EPA's vehicle emission limits. Nor has he wiped out corporate average fuel-economy rules, set by the NHTSA. So far, he's done two things: signed an executive order reopening the comment period for 2022-2025 EPA emission...

The Clean Power Plan’s future looks uncertain at best under President Donald Trump. The commander-in-chief appears to be urging American utility companies to pivot back towards burning coal to produce electricity. Ending the so-called “war on coal” is intended to create jobs in...

Former New York City mayor Michael Bloomberg has gone on record saying publicly what most analysts have discussed privately: the notion that Washington can direct the energy market back towards coal is wrong. In fact, Bloomberg is willing to go further: he believes that the U.S. can still meet the...

The prospect of ongoing operations as usual continues to darken for the Environmental Protection Agency. According to a detailed internal budget document published in the The Washington Post, the Trump administration wants to eliminate virtually all federal funding for the agency’s vehicle...

The new U.S. president, Donald Trump, is working to eradicate every Obama policy to limit the carbon emissions that contribute to climate change. Having variously called the science behind climate change a "Chinese plot" to hurt the U.S. and referred to it using an expletive for bovine excrement...

For more than 13 years, London has collected a stiff charge from motor vehicles entering the congested core of the city during weekday business hours. Known as the congestion charge, the fee of £11.50 a day, or $14.50 (£10 with automatic payment, or $12.50) is levied from 6 am to 7 pm...

No vehicle on earth is entirely free of emissions; even electric cars charged on renewable energy have emissions associated with their manufacturing. Those emissions, however, are a tiny fraction of the carbon dioxide and other substances emitted by gasoline or diesel cars when scientifically...

These do not appear to be the best of times for President Donald J. Trump, but his agenda of eliminating regulations and promoting fossil fuels continues to roll out. This week, Trump appeared at the EPA to sign an executive order that directed the agency to reopen and reassess its Clean Power Plan...